CbcSubProblem.hpp

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00001 // $Id: CbcSubProblem.hpp 1899 2013-04-09 18:12:08Z stefan $
00002 // Copyright (C) 2002, International Business Machines
00003 // Corporation and others.  All Rights Reserved.
00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
00005 
00006 // Edwin 11/10/2009-- carved out of CbcBranchActual
00007 
00008 #ifndef CbcSubProblem_H
00009 #define CbcSubProblem_H
00010 
00011 #ifdef COIN_HAS_CLP
00012 #include "ClpSimplex.hpp"
00013 #include "ClpNode.hpp"
00014 
00018 class CoinWarmStartDiff;
00019 class CbcSubProblem {
00020 
00021 public:
00022 
00024     CbcSubProblem ();
00025 
00027     CbcSubProblem (const OsiSolverInterface * solver,
00028                    const double * lowerBefore,
00029                    const double * upperBefore,
00030                    const unsigned char * status,
00031                    int depth);
00032 
00034     CbcSubProblem ( const CbcSubProblem &);
00035 
00037     CbcSubProblem & operator= (const CbcSubProblem& rhs);
00038 
00040     virtual ~CbcSubProblem ();
00041 
00043   void takeOver ( CbcSubProblem &, bool cleanup);
00045     void apply(OsiSolverInterface * model, int what = 3) const;
00046 
00047 public:
00049     double objectiveValue_;
00051     double sumInfeasibilities_;
00053     double branchValue_;
00055     double djValue_;
00058     int * variables_;
00060     double * newBounds_;
00062     mutable CoinWarmStartBasis * status_;
00064     int depth_;
00066     int numberChangedBounds_;
00068     int numberInfeasibilities_;
00076     int problemStatus_;
00078     int branchVariable_;
00079 };
00080 
00081 #endif //COIN_HAS_CLP
00082 #endif
00083 
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